Rework lockhelper for gunter

home/hyprland/hyprland_gunter.nix

@@ -4,6 +4,25 @@
   config,
   ...
 }:
+let
+  lockhelper = pkgs.callPackage ../scripts/lockhelper.nix { };
+  monitorTopDesc = "BNQ G2420HDBL T2B04424SL000";
+  monitorTopName = "desc:${monitorTopDesc}";
+  monitorTopHash = builtins.substring 0 8 (builtins.hashString "sha256" monitorTopDesc);
+
+  monitorLeftDesc = "Samsung Electric Company LS27A600U HNMT502389";
+  monitorLeftName = "desc:${monitorLeftDesc}";
+  monitorLeftHash = builtins.substring 0 8 (builtins.hashString "sha256" monitorLeftDesc);
+
+  monitorCenterDesc = "Acer Technologies XB271HU #ASPVEKfgZ8Dd";
+  monitorCenterName = "desc:${monitorCenterDesc}";
+  monitorCenterHash = builtins.substring 0 8 (builtins.hashString "sha256" monitorCenterDesc);
+
+  monitorRightDesc = "Samsung Electric Company LS27A600U HNMT502390";
+  monitorRightName = "desc:${monitorRightDesc}";
+  monitorRightHash = builtins.substring 0 8 (builtins.hashString "sha256" monitorRightDesc);
+
+in
 {
   options.hyprland.enable = lib.mkEnableOption "Hyprland";
   config = {
@@ -32,12 +51,12 @@
       settings = {
         general = {
           lock_cmd = "${pkgs.hyprlock}/bin/hyprlock";
-          before_sleep_cmd = "lockhelper";
+          before_sleep_cmd = "${lockhelper}/bin/lockhelper";
           ignore_dbus_inhibit = false;
         };
         listener = {
           timeout = 240;
-          on-timeout = "lockhelper";
+          on-timeout = "${lockhelper}/bin/lockhelper";
         };
       };
     };
@@ -47,8 +66,10 @@
       settings = {
         background = [
           {
-            monitor = "DP-5";
-            path = "/tmp/lockscreen/DP-5.png";
+            monitor = monitorTopName;
+            # path = "/tmp/lockscreen/${monitorTopHash}.png";
+            path = "screenshot";
+            color = "rgba(17, 17, 17, 1.0)";
             blur_passes = 3;
             contrast = 0.8916;
             brightness = 0.8172;
@@ -56,8 +77,22 @@
             vibrancy_darkness = 0.0;
           }
           {
-            monitor = "DP-6";
-            path = "/tmp/lockscreen/DP-6.png";
+            monitor = monitorLeftName;
+            # path = "/tmp/lockscreen/${monitorLeftHash}.png";
+            path = "screenshot";
+            color = "rgba(17, 17, 17, 1.0)";
+            blur_passes = 3;
+            contrast = 0.8916;
+            brightness = 0.8172;
+            vibrancy = 0.1696;
+            vibrancy_darkness = 0.0;
+            zindex = 1;
+          }
+          {
+            monitor = monitorCenterName;
+            # path = "/tmp/lockscreen/${monitorCenterHash}.png";
+            path = "screenshot";
+            color = "rgba(17, 17, 17, 1.0)";
             blur_passes = 3;
             contrast = 0.8916;
             brightness = 0.8172;
@@ -65,17 +100,10 @@
             vibrancy_darkness = 0.0;
           }
           {
-            monitor = "DP-7";
-            path = "/tmp/lockscreen/DP-7.png";
-            blur_passes = 3;
-            contrast = 0.8916;
-            brightness = 0.8172;
-            vibrancy = 0.1696;
-            vibrancy_darkness = 0.0;
-          }
-          {
-            monitor = "DP-8";
-            path = "/tmp/lockscreen/DP-8.png";
+            monitor = monitorRightName;
+            # path = "/tmp/lockscreen/${monitorRightHash}.png";
+            path = "screenshot";
+            color = "rgba(17, 17, 17, 1.0)";
             blur_passes = 3;
             contrast = 0.8916;
             brightness = 0.8172;
@@ -85,9 +113,7 @@
         ];
 
         general = {
-          no_fade_in = false;
           grace = 0;
-          disable_loading_bar = true;
         };
 
         input-field = [
@@ -155,10 +181,10 @@
         "$term" = "kitty";
 
         # monitors
-        "$mon_top" = "desc:BNQ G2420HDBL T2B04424SL000";
-        "$mon_left" = "desc:Samsung Electric Company LS27A600U HNMT502389";
-        "$mon_center" = "desc:Acer Technologies XB271HU #ASPVEKfgZ8Dd";
-        "$mon_right" = "desc:Samsung Electric Company LS27A600U HNMT502390";
+        "$mon_top" = monitorTopName;
+        "$mon_left" = monitorLeftName;
+        "$mon_center" = monitorCenterName;
+        "$mon_right" = monitorRightName;
 
         monitor = [
           "$mon_top,1920x1080@60,2560x0,1" # top T2B04424SL000
@@ -269,7 +295,7 @@
           "$mainMod,Return,exec,$term"
 
           # hyprlock
-          "$shiftMainMod,l,exec,lockhelper"
+          "$shiftMainMod,l,exec,${lockhelper}/bin/lockhelper"
 
           # rofi
           "$mainMod,D,exec,rofi-launcher"

home/scripts/default.nix

@@ -1,7 +1,6 @@
 { pkgs, config, ... }:
 {
   imports = [
-    ./lockhelper.nix
     ./noita-helper.nix
   ];
   home.file.".local/bin/hl-no-opacity" = {

home/scripts/lockhelper.nix

@@ -1,14 +1,21 @@
-{ pkgs, ... }:
-let
-  lockhelper = pkgs.writeShellApplication {
+{
+  writeShellApplication,
+  grim,
+  jq,
+  gawk,
+  hyprland,
+  hyprlock,
+  procps,
+}:
+writeShellApplication {
   name = "lockhelper";
-    runtimeInputs = with pkgs; [
+  runtimeInputs = [
     grim
     jq
+    gawk
+    hyprland
+    hyprlock
+    procps
   ];
   text = (builtins.readFile ./lockhelper.sh);
-  };
-in
-{
-  home.packages = [ lockhelper ];
 }

home/scripts/lockhelper.sh

@@ -3,11 +3,14 @@ set -eo pipefail
 
 mkdir -p /tmp/lockscreen || true
 
-monitors=$(hyprctl monitors -j | jq -r '.[] | select( .name | contains ("DP")) | .name')
+monitor_lines=$(hyprctl monitors -j | jq -r '.[] | select (.name | contains ("DP")) | [.name, .description]| @tsv')
 
 while IFS= read -r m; do
-    grim -o "$m" "/tmp/lockscreen/$m.png" || true
-done <<< "$monitors"
+    name=$(echo "$m" | awk -F $'\t' '{print $1}')
+    sum=$(echo "$m" | awk -F $'\t' '{printf $2}' | sha256sum | awk '{print substr($1,1,8)}')
+
+    grim -o "$name" "/tmp/lockscreen/$sum.png" || true
+done <<< "$monitor_lines"
 
 # Only lock if not already running
 if [ -z "$(pgrep hyprlock)" ]